Engineering Mechanics

Proceedings Vol. 9 (2003)

ENGINEERING MECHANICS 2003

Copyright © 2003 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

Vlček L., Kozák V.
pages 376 - +8p., full text

This paper presents the consideration on the change judgement of J integral and Q parameter as the base parameters of two-parameter elastic-plastic fracture mechanics. An extensive set of non-linear 3D FEM analyses of SE(B) specimens deals with crack front conditions, which are characterised in terms of J-Q trajectories. Results of numerical simulations provide "effective" thickness, which can be used in statistical approaches.

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